斷言:
這里介紹以下幾個斷言方法:
assertEqual
assertNotEqual
assertTrue
assertFalse
assertIsNone
assertIsNotNone
(一)assertEqual 和 assertNotEqual
assertEqual:如兩個值相等,則pass
assertNotEqual:如兩個值不相等,則pass
(二)assertTrue和assertFalse
assertTrue:判斷bool值為True,則pass
assertFalse:判斷bool值為False,則Pass
(三)assertIsNone和assertIsNotNone
assertIsNone:不存在,則pass
assertIsNotNone:存在,則pass
